Abstract
The purpose of this study is to develop a haptic display to represent touch sense by engineering approach in different conventional ways. With this purpose, two directions were featured as follows;(1) a physiology approach to analyze the mechanism of haptic perception and (2) an engineering approach to produce the device with reasonable electric devices. In the physiology approach, the theory of Touch Blend (including the Touch Pyramid proposed by E. B. Titchener) was examined. In the engineering approach, our proposed display with a new Touch Pyramid was consisted of the peltier device, the pressure sensor, and the DC vibration motor on the basis of the pyramid. An evaluation experiment was carried out on 30 subjects of early 20s. They were ordered to put their fingertip on the device. As results, 80 percent of volunteers perceived particular haptic sense (e. g. itch and prick) by synthesizing vibration and warmth. And, 77 percent of volunteers perceived particular haptic sense (e. g. numb) by synthesizing vibration and coldness. From these results, the device using the new method was able to display the blended haptic senses, which were evoked by the physically independent stimuli.
